ABAP Function Module Reference

CONVERSION_EXIT_ALPHA_INPUT

Pad input text with zeros to a minimum of 10 characters.

DATA value TYPE string.
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_INPUT'
  EXPORTING input = '12345'
  IMPORTING output = value.
WRITE: / value.

Example output:

0000012345

The local adapter uses a minimum width of 10; it does not infer all DDIC-specific ALPHA conversion rules.

CONVERSION_EXIT_ALPHA_OUTPUT

Remove leading zeros before digits.

DATA value TYPE string.
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING input = '0000012345'
  IMPORTING output = value.
WRITE: / value.

Example output:

12345

Converts leading numeric zeros. Field-specific DDIC rules are not inferred.

DATE_COMPUTE_DAY

Determine the weekday of a valid Gregorian date in internal YYYYMMDD format.

DATA weekday TYPE i.
CALL FUNCTION 'DATE_COMPUTE_DAY'
  EXPORTING date = '20261010'
  IMPORTING day = weekday.
WRITE: / weekday.

Example output:

6

Uses UTC calendar arithmetic; no timezone or factory-calendar conversion is performed.

DATE_CHECK_PLAUSIBILITY

Check a YYYYMMDD date, including leap years and month lengths.

CALL FUNCTION 'DATE_CHECK_PLAUSIBILITY'
  EXPORTING date = '20260230'
  EXCEPTIONS date_no_plausible = 1
             OTHERS = 2.
WRITE: / sy-subrc.

Example output:

1

An invalid calendar date raises DATE_NO_PLAUSIBLE. Exception mappings set sy-subrc.

Exceptions: DATE_NO_PLAUSIBLE

CONVERT_DATE_TO_INTERNAL

Convert a supported external date to internal YYYYMMDD form.

DATA internal_date TYPE d.
CALL FUNCTION 'CONVERT_DATE_TO_INTERNAL'
  EXPORTING date_external = '14.10.2026'
  IMPORTING date_internal = internal_date.
WRITE: / internal_date.

Example output:

20261014

Uses an explicit locale-independent format subset; SAP user date-format settings are not available in this simulator.

Exceptions: DATE_FORMAT_INVALID, DATE_NO_PLAUSIBLE

CONVERT_DATE_TO_EXTERNAL

Format an internal date as DD.MM.YYYY.

DATA external_date TYPE string.
CALL FUNCTION 'CONVERT_DATE_TO_EXTERNAL'
  EXPORTING date_internal = '20261014'
  IMPORTING date_external = external_date.
WRITE: / external_date.

Example output:

14.10.2026

Uses DD.MM.YYYY because the simulator does not have SAP user locale settings.

Exceptions: DATE_NO_PLAUSIBLE

DATE_GET_WEEK

Return the ISO year and week number as YYYYWW for a valid date.

DATA week TYPE n LENGTH 6.
CALL FUNCTION 'DATE_GET_WEEK'
  EXPORTING date = '20261014'
  IMPORTING week = week.
WRITE: / week.

Example output:

202642

Returns an ISO-8601 week. Locale-specific SAP factory or calendar rules are not applied.

Exceptions: DATE_NO_PLAUSIBLE

WEEK_GET_FIRST_DAY

Find the Monday starting an ISO week in YYYYWW form.

DATA monday TYPE d.
CALL FUNCTION 'WEEK_GET_FIRST_DAY'
  EXPORTING week = '202642'
  IMPORTING date = monday.
WRITE: / monday.

Example output:

20261012

Accepts ISO week keys only; non-ISO factory calendars are not simulated.

Exceptions: WEEK_INVALID

RP_CALC_DATE_IN_INTERVAL

Add or subtract a bounded days/months/years interval from a date.

DATA due_date TYPE d.
CALL FUNCTION 'RP_CALC_DATE_IN_INTERVAL'
  EXPORTING date = '20260131'
            days = 0
            months = 1
            years = 0
            signum = '+'
  IMPORTING calc_date = due_date.
WRITE: / due_date.

Example output:

20260228

Month/year shifts clamp to the last day of the resulting month. Each interval is bounded; SAP payroll calendar rules are not implemented.

Exceptions: DATE_NO_PLAUSIBLE, INTERVAL_OUT_OF_RANGE

ZED_STRING_REPLACE

Replace all occurrences of a literal substring in bounded text.

DATA result TYPE string.
CALL FUNCTION 'ZED_STRING_REPLACE'
  EXPORTING input = 'ABAP Playground'
            substring = 'Playground'
            replacement = 'Workbench'
  IMPORTING output = result.
WRITE: / result.

Example output:

ABAP Workbench

ZED_ denotes a local training helper, not an SAP-delivered function module. Matching is literal and case-sensitive.

Exceptions: TEXT_TOO_LONG, SUBSTRING_EMPTY

ZED_STRING_NORMALIZE

Trim text and collapse repeated whitespace to one space.

DATA result TYPE string.
CALL FUNCTION 'ZED_STRING_NORMALIZE'
  EXPORTING input = '  ABAP   Playground  '
  IMPORTING output = result.
WRITE: / result.

Example output:

ABAP Playground

ZED_ denotes a local training helper. Whitespace is normalized without locale-specific text rules.

Exceptions: TEXT_TOO_LONG

REUSE_ALV_GRID_DISPLAY

Display a typed internal table using the common local ALV renderer.

TYPES: BEGIN OF ty_row, id TYPE i, label TYPE string, END OF ty_row.
DATA rows TYPE STANDARD TABLE OF ty_row WITH EMPTY KEY.
rows = VALUE #( ( id = 1 label = 'Local ALV' ) ).
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
  EXPORTING i_grid_title = 'Classic ALV example'
  TABLES t_outtab = rows.

Example output:

Classic ALV example
ID | LABEL
1 | Local ALV

Supports table data, column labels/visibility/totals and zebra layout. Callback programs, editable GUI grids and frontend services are not implemented.

REUSE_ALV_GRID_DISPLAY_LVC

Display a typed internal table using the common local ALV renderer.

TYPES: BEGIN OF ty_row, id TYPE i, label TYPE string, END OF ty_row.
DATA rows TYPE STANDARD TABLE OF ty_row WITH EMPTY KEY.
rows = VALUE #( ( id = 1 label = 'Local ALV' ) ).
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY_LVC'
  EXPORTING i_grid_title = 'Classic ALV example'
  TABLES t_outtab = rows.

Example output:

Classic ALV example
ID | LABEL
1 | Local ALV

Supports table data, column labels/visibility/totals and zebra layout. Callback programs, editable GUI grids and frontend services are not implemented.